THz Hybridization in CRAN-Based Vehicular Networks: Performance and Handoff Implications

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-02-13 DOI:10.1109/LCOMM.2025.3541579

Sameer K. Singh;Nishant Gupta;Rohit Singh;Brijesh Kumbhani

引用次数: 0

Abstract

In this letter, we propose a modified cloud radio access network (CRAN) configuration to enhance vehicular connectivity. The proposed CRAN integrates sub-6 GHz through Macro-Remote Radio Heads (M-RRHs) and terahertz (THz) waves with Terahertz Stations (TSs). Besides, to effectively utilize the potential of THz and sub-6 GHz bands, we consider the two distinct traffic zones (i.e., dense zone and sparse zones). Further, we derive analytical closed-form expressions for coverage probability and hand-off aware rate for both zones to analyze the performance variations across sub-6 GHz and THz frequencies. Through simulations, we demonstrate the effectiveness of the proposed approach compared to baseline approaches.

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基于 CRAN 的车载网络中的太赫兹混合：性能和切换影响

在这封信中，我们提出了一种改进的云无线接入网络（CRAN）配置，以增强车辆连接。拟议的CRAN通过宏远程无线电头（M-RRHs）和太赫兹（THz）波与太赫兹站（ts）集成了低于6 GHz的电波。此外，为了有效地利用太赫兹和sub- 6ghz频段的潜力，我们考虑了两个不同的交通区域（即密集区和稀疏区）。此外，我们推导了两个区域的覆盖概率和切换感知率的解析封闭表达式，以分析sub-6 GHz和THz频率下的性能变化。通过仿真，我们证明了与基线方法相比，所提出方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.